Fix test failure due to missing call to set_tmp_attachments_directory (#32122).

Patch by Yuichi HARADA.


git-svn-id: http://svn.redmine.org/redmine/trunk@18593 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/functional/documents_controller_test.rb

@@ -234,6 +234,7 @@ LOREM
   end
 
   def test_destroy
+    set_tmp_attachments_directory
     @request.session[:user_id] = 2
     assert_difference 'Document.count', -1 do
       delete :destroy, :params => {
@@ -245,6 +246,7 @@ LOREM
   end
 
   def test_add_attachment
+    set_tmp_attachments_directory
     @request.session[:user_id] = 2
     assert_difference 'Attachment.count' do
       post :add_attachment, :params => {